Grinding tool



FIG. 1 is a left front perspective view of the grinding tool;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is front elevational view a thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for the grinding tool, as shown and described. 